Frederick a



sirerss l stens twice,

Fnnnnnrcs: A. ABEL, cs Lennon, AND muss DEWAR, OF CAMBRIDGE,

' oonnrr or CAMBRIDGE, ENGLAND.

iiTRQ GELAiiNE ssssosavs.

QPECHZQATIQI forms; part o Letters Patent No. 09,549, dated August 20, 1889. Application filed June 20, 1889. Serial lie. 314,997 (No specimens.)

, To aZZ whom it may concern.-

Be it known that we, FREDERICK Aceosros ABEL, knight, and JAMES DE'WAR, professor of chemistry, citizens of Englsniresidingfiespectively, at No. 1 Adam Street, in the city of London, England, and at No. 1 Soroop Terrace, Cambridge, in the county of Cambridge,

Englendghaw invented a new and useful im- 'aceoinpanied by other ingredients, are well adapted for blasting purposes, owing to the disruptive character of their explosion; but they arenot suitable as constituents of ammunition, for which explosions of a propulsive rather than of a disruptive oharcctersre required.

It has been proposed to .add to the ingredients of blastin -geletine bodies of en inert kindl -such as csniphor-in order to lessen the rapidity of the combustion, and thus render the explosive available for propulsive purposes but if such inert matter added is of a volatile character or otherwise liable to change in quantity or condition, the quality of the explosive of which it forms a part is not suificiently permanent to be relied on for storage or use.

, Our invention relates to mez ns'of treating blesting-geletine, whether it be simple or compounded with substances which are sometimes added to iirsuch as nitrates of hydrocarbons c e non-volatile character -in such a manner as to render it svoilable for ammunition,whi-. .iwe effect the following manner: Blesting-gelstine, manufactured in the ordinary way, but with a greater percentage of soluble nitrocellulose and with volatile solvent-such as scetoneor acetic ether-sumoient to give it the consistence of a moderately thick jelly, or ordinary blasting-gelctine with the addition of soluble nitro-cellulose and solvent to bring it to a like condition, is pressed through holes in a plate so as to form is number 01 wires, which may be of various sizes, such as one-eighth of an inch diameter, more or less. These wires, which at first are soft and pliable,become toughened by evaporation of the solvent. They are out into lengths, Which'cre packed side by side in the shells of cartridge-cases, forming bundles orv sheaves of explosive wires, which by their" thereof through holes to form wires, cutting these wires into suitable lengths, and packing them in cartridge-cases, substantially as described.

In testimony whereof we have signed our names to this specification, in the presence of two' subscibing witnesses, this 5th day of June, A. D. 1889.

F. A. ABEL.

J. DEWAR. Witnesses:

OLIVER IMRAY, Patent Agent, 28 Southampton Buildings,

Land m, W. O. JNQ. Pull/I. MILLARD,

Clerk to Messrs. Abel (52' Imm'y, Consult mg Engineers and'Patent Agents, Southampton Buildings, London, W C. 

